EP1421978B1 - Gleitbrett and sein Herstellungsverfahren - Google Patents

Gleitbrett and sein Herstellungsverfahren Download PDF

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Publication number
EP1421978B1
EP1421978B1 EP03104102A EP03104102A EP1421978B1 EP 1421978 B1 EP1421978 B1 EP 1421978B1 EP 03104102 A EP03104102 A EP 03104102A EP 03104102 A EP03104102 A EP 03104102A EP 1421978 B1 EP1421978 B1 EP 1421978B1
Authority
EP
European Patent Office
Prior art keywords
internal reinforcement
reinforcement
board
gliding board
gliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP03104102A
Other languages
English (en)
French (fr)
Other versions
EP1421978A1 (de
Inventor
Eric Restani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skis Rossignol SA
Original Assignee
Skis Rossignol SA
Rossignol SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skis Rossignol SA, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP1421978A1 publication Critical patent/EP1421978A1/de
Application granted granted Critical
Publication of EP1421978B1 publication Critical patent/EP1421978B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials

Definitions

  • the invention relates to the field of snow sliding sports. It is more particularly a new board structure for gliding, that is to say Alpine skiing or derivatives, such as Nordic skiing, as well as snowboarding. It relates more particularly to a new board structure, and an associated manufacturing method, which make it possible to produce injected core boards whose upper face has marked relief effects, and whose internal structure comprises rigid reinforcements.
  • the gliding boards have a core which is made either in pre-element, or from injection and molding operations during which chemical components are introduced into a mold, and react in such a way that expand to form the nucleus in situ. More specifically, this expansion takes place in the volume defined between two upper and lower outer layers respectively forming the upper protective layer of the board and the gliding sole, as well as lateral reinforcing elements, forming all or part of the edges. During the injection, and the expansion that follows, these different elements are pressed against the die and the lid of the mold.
  • the mechanical properties of the injected skis are directly related to the use of internal reinforcements which generally have a high rigidity.
  • This type of reinforcement is generally made either of metal or based on fibrous materials, and in particular by laminates which can be based on glass fibers.
  • the choice of materials, as well as the dimensions of the reinforcement and its positioning within the core, are preponderant to obtain the desired mechanical characteristics.
  • All substantially planar reinforcements known to date are generally arranged either in contact with the layer forming the sole or the upper protective layer, possibly with the interposition of other specific reinforcements. To ensure proper positioning of the reinforcement during the injection operation, the latter is generally previously bonded to the outer layer in contact with which it comes, which avoids the displacement of this reinforcement during the movement of the polyurethane foam .
  • a solution to this problem has been proposed by the Applicant in the document FR 2,818,915 .
  • This solution consists in making openings in the rigid reinforcement to allow the upper protective layer to deform according to the desired volume, without deforming too much the reinforcement itself. These openings can be complete, thus promoting the passage of the polyurethane foam. These openings may also be partial so as to allow the local deformation of the reinforcement which remains stuck under the upper protective layer.
  • a problem to be solved by the invention is that of using reinforcements whose height is optimized to give a stiffness specific to the board. Another problem is that of retaining the reinforcement its intrinsic properties so as to influence the stiffness of the board in the desired manner.
  • the invention therefore relates to a gliding board as set forth in claim 1.
  • the characteristic reinforcement extends over the entire width of the board, with the exception of indented areas which connect the volumes above and below the reinforcement, to allow the circulation of the foam expanding when forming the nucleus.
  • the reinforcement either in the upper part or in the lower part of the core.
  • this foam spreads over the reinforcement, and fills the volume below the upper protective layer.
  • the polyurethane foam spreads and expands passing under the reinforcement, and coming into contact with the sole.
  • the notches made in the reinforcement may be offset longitudinally from one edge to the other of the reinforcement, so that it maintains a minimum width sufficient to maintain a desired rigidity.
  • the reinforcement is maintained either on one side or the other, which prevents its deformation upwards or downwards.
  • the internal reinforcement can cooperate with the lateral reinforcing elements at different levels.
  • the reinforcement may rest on a recess forming a shoulder formed either in the upper part or in the lower part of the lateral reinforcing element, or even in a groove-shaped recess made on the internal face of the lateral element, at an intermediate level.
  • the reinforcement In the case where the reinforcement rests in a recess on an upper part of the lateral reinforcing element, it can receive over the contact of the upper protective layer.
  • the internal reinforcement can be very varied in nature, and in particular based on a fibrous laminate material, or even a metallic material.
  • the invention also relates to a method of manufacturing by injection or molding of a gliding board as set forth in claim 11.
  • the invention is based on the integration within a gliding board of a characteristic reinforcement, having a geometry of which FIG. 1 constitutes an example.
  • Such a reinforcement has a width substantially equal to that of the board, and a length which corresponds to the length in which it is desired that it extends along the ski.
  • This reinforcement (1) has multiple notches (2, 3) distributed on each side of the reinforcement, and separated by rectilinear portions (4, 5).
  • these notches (2, 3) have a length L of the order of 15 to 60 mm, and a width l of the order of a few millimeters, typically 2 to 6 mm wide.
  • the notches (2, 3) are arranged on either side of the reinforcement, and offset relative to each other so that the width of the reinforcement is reduced by only the width of a single notch.
  • the reinforcement is put in place as illustrated in FIGS. 2 and 3.
  • the various elements constituting the lower assembly of the board namely the sole (11) are placed in a bottom (10) of the mold. ), as well as the edges (12).
  • Different reinforcements can be put in place directly above the sole, without interfering with the present invention.
  • reinforcing elements 13, 14
  • these reinforcing elements also have fins (15) for locking them in position in the mold.
  • these reinforcing elements have a recess made at their inner upper corner. This recess (16) forms a shoulder on which can rest the edge (4, 5) of the reinforcement (1).
  • the notches (3) of the reinforcement (1) define a passage between the volume (20) below the reinforcement (1) and the volume (21) above.
  • This upper volume is limited by an upper protective layer (23). It is observed that the mold cover (18) has recesses for defining the bosses (26, 27) on the board. During the injection of the various constituents reacting to form the polyurethane foam, the latter spread by propagating in the volume (20) below the reinforcement (1), and through the different notches (2, 3 ) in the upper volume (21), so as to push the protective layer (23) against the bottom of the mold cover. The reinforcement (1) is held in position because it receives the contact of the upper protective layer at the reinforcement elements (13, 14).
  • the reinforcement (1) is positioned at an intermediate level of the height of the board. To do this, it is placed inside grooves (36) in which the flat portions (4, 5) can be integrated. In this case, when the injection is done either above or below the reinforcement, the passage (37) allows the communication between the upper and lower volumes (30, 31), and therefore a homogeneous distribution of the polyurethane foam.
  • the boards according to the invention have the advantage of having reinforcements which are optimally positioned at the height necessary to confer the desired rigidity.
  • the presence of these reinforcements allows the passage of polyurethane foam that allows to achieve at the upper face of the board volumes and forms very varied, without degrading the mechanical performance of the reinforcement.

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Sliding-Contact Bearings (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (11)

  1. Gleitbrett, umfassend:
    · einen eingespritzten Kern aus Polyurethanschaum;
    · seitliche Verstärkungselemente (13, 14), die die Schmalkanten des Bretts oder einen Teil von diesen bilden;
    · mindestens eine innere Verstärkung (1) in Form einer vollen Schicht;
    · zwei Außenschichten, die die Sohle (11) für die untere Schicht und die Schutzschicht (23) für die obere Schicht bilden,
    wobei die innere Verstärkung (1) auf Ausnehmungen (16) aufliegen, die zu diesem Zweck in jedem der seitlichen Verstärkungselemente (13, 14) vorgesehen sind, dadurch gekennzeichnet, dass die innere Verstärkung auf ihren seitlichen Rändern Aussparungen (2, 3) aufweist, so dass sie auf Höhe dieser Aussparungen von dem spritzgegossenen Kern durchsetzt wird, der auf diese Weise das zwischen der inneren Verstärkung (1) und mindestens einer der beiden Außenschichten (23) begrenzte Volumen (21) mindestens teilweise ausfüllt.
  2. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass der Kern das zwischen der inneren Verstärkung und der oberen Schutzschicht begrenzte Volumen mindestens teilweise ausfüllt.
  3. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass der Kern das zwischen der inneren Verstärkung und der unteren eine Sohle bildenden Schicht mindestens teilweise ausfüllt.
  4. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass die in der inneren Verstärkung vorgesehenen Aussparungen (2, 3) von einem Rand dieser Verstärkung zur anderen in Längsrichtung versetzt sind.
  5. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass die innere Verstärkung auf einer eine Schulter bildenden Ausnehmung aufliegt, die im oberen Teil des seitlichen Verstärkungselements vorgesehen ist.
  6. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass die innere Verstärkung durch eine eine Schulter bildende Ausnehmung blockiert ist, die im unteren Teil des seitlichen Verstärkungselements vorgesehen ist.
  7. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass die innere Verstärkung in einer nutförmigen Ausnehmung (36) aufliegt, die auf der Innenseite des seitlichen Verstärkungselements vorgesehen ist.
  8. Gleitbrett nach Anspruch 5, dadurch gekennzeichnet, dass die obere Schutzschicht (23) auf Höhe der seitlichen Verstärkungselemente (13, 14) mindestens zum Teil auf der inneren Verstärkung aufliegt.
  9. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass die innere Verstärkung auf der Basis eines Faserschichtwerkstoffs ist.
  10. Gleitbrett nach Anspruch 1, dadurch gekennzeichnet, dass die innere Verstärkung auf der Basis eines metallischen Werkstoffs ist.
  11. Verfahren zur Herstellung eines Gleitbretts, das seitliche Verstärkungselemente, die ganz oder teilweise die Schmalkanten des Bretts, bilden, Außenschichten und mindestens eine innere Verstärkung umfasst, durch Spritzguß/Formung, wobei dieses Verfahren einen Schritt des in situ-Spritzens von Komponenten einsetzt, die chemisch reagieren, um einen Schaum zu bilden, der zum Zweck der Bildung des Kerns des Bretts expandiert, und man bei dem Einsetzen der einzelnen das Brett bildenden Elemente in die Form die innere Verstärkung in zu diesem Zweck in den seitlichen Verstärkungselementen vorgesehenen Ausnehmungen blockiert, dadurch gekennzeichnet, dass die innere Verstärkung seitliche Aussparungen aufweist, die die über und unter dieser Verstärkung begrenzten Volumen in Verbindung setzen, so dass eine Zirkulation des sich bei der Bildung des Kerns expandierenden Schaums gestattet wird.
EP03104102A 2002-11-22 2003-11-06 Gleitbrett and sein Herstellungsverfahren Expired - Fee Related EP1421978B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0214673A FR2847483B1 (fr) 2002-11-22 2002-11-22 Planche de glisse et procede de fabrication d'une telle planche de glisse
FR0214673 2002-11-22

Publications (2)

Publication Number Publication Date
EP1421978A1 EP1421978A1 (de) 2004-05-26
EP1421978B1 true EP1421978B1 (de) 2007-12-26

Family

ID=32187803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03104102A Expired - Fee Related EP1421978B1 (de) 2002-11-22 2003-11-06 Gleitbrett and sein Herstellungsverfahren

Country Status (5)

Country Link
US (1) US6994369B2 (de)
EP (1) EP1421978B1 (de)
AT (1) ATE381960T1 (de)
DE (1) DE60318292T2 (de)
FR (1) FR2847483B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT413797B (de) * 2003-03-07 2006-06-15 Tyrolia Technology Gmbh Gleitbrett, insbesondere ski, und verfahren zur herstellung
FR2878756B1 (fr) 2004-12-07 2007-02-23 Salomon Sa Procede de fabrication d'une planche de glisse en structure composite et a noyau injecte et planche obtenue par la mise en oeuvre du procede
FR2879939B1 (fr) 2004-12-29 2007-03-16 Salomon Sa Procede de fabrication d'une planche de glisse ou de roulage a structure composite
SI22083B (sl) * 2005-07-18 2009-12-31 Elan, D.O.O. Smučka ali snežna deska z izboljšano torzijsko togostjo
US8282114B2 (en) * 2006-11-30 2012-10-09 Magee Thane G Skateboard deck
AT11519U1 (de) * 2010-01-27 2010-12-15 Atomic Austria Gmbh Verfahren zur herstellung eines äusseren begrenzungselementes für einen gleitbrettkörper sowie verfahren zur herstellung eines damit ausgestatteten gleitbrettkörpers
US9108101B2 (en) * 2012-10-19 2015-08-18 Gilson Boards, Llc Snowboard
EP3036019B1 (de) 2013-08-19 2020-07-29 Gilson Snow, Inc. Snowboard mit modifizierten schienen und kanten
FR3057782B1 (fr) 2016-10-26 2018-11-09 Skis Rossignol Ensemble d'au moins deux elements de construction d'un chant de planche de glisse, et planche de glisse incluant un chant realise avec un tel ensemble
DE102017125770A1 (de) * 2016-12-29 2018-07-05 Völkl Sports GmbH & Co. KG Untergurt mit Klammereffekt
FR3086868B1 (fr) 2018-10-05 2021-02-12 Rossignol Sa Ski injecte noyau hybride
EP3885009B1 (de) * 2020-03-25 2022-03-23 Head Technology GmbH Gleitbrettkörper mit holzkern und pu schaum verbindungschichten unterhalb und/oder oberhalb vom kern

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH523694A (fr) * 1969-11-07 1972-06-15 Nippon Musical Instruments Mfg Ski et procédé pour sa fabrication
AT336460B (de) 1975-05-26 1977-05-10 Fischer Gmbh Mehrschichtenski
JPS6182773A (ja) * 1984-09-29 1986-04-26 協業組合　青森スキ−製作所 スキ−板の製造方法
FR2620628B2 (fr) * 1987-02-27 1994-08-19 Salomon Sa Procede pour realiser un ski et ski fait selon ce procede
FR2629352B1 (fr) * 1988-03-29 1990-12-28 Salomon Sa Procede pour realiser un ski, et ski realise selon ce procede
FR2654644B1 (fr) * 1989-11-22 1992-03-13 Salomon Sa Procede de fabrication d'un ski injecte, et structure de ski obtenue par ce procede.
FR2654670A1 (fr) * 1989-11-23 1991-05-24 Rossignol Sa Procede pour la fabrication en une seule operation d'une structure moulee complexe, notamment un ski, et structure moulee complexe ainsi obtenue.
FR2687925B1 (fr) * 1992-02-27 1994-05-06 Salomon Sa Procede de fabrication d'un ski et ski obtenu par ce procede.
DE4322300C2 (de) * 1992-07-16 2002-12-19 Atomic Austria Gmbh Altenmarkt Ski mit einer Schale, einem Untergurt sowie einem vorzugsweise in die Schale integrierten Obergurt und Verfahren zum Herstellen eines Skis
FR2694201B1 (fr) * 1992-07-31 1994-09-23 Salomon Sa Procédé de fabrication d'un ski.
FR2703915B1 (fr) * 1993-04-16 1995-06-02 Rossignol Sa Ski comportant des chants et une coque supérieure.
FR2714615B1 (fr) * 1994-01-04 1996-02-16 Rossignol Sa Ski, ou autre planche de glisse sur neige, à noyau injecté "in situ".
FR2746662B1 (fr) * 1996-03-27 1998-05-29 Salomon Sa Planche de ski entouree d'une carre continue
FR2818915B1 (fr) * 2000-12-29 2003-02-07 Rossignol Sa Planche de glisse
AT500252B1 (de) * 2003-03-07 2008-12-15 Tyrolia Technology Gmbh Gleitbrett, insbesondere ski

Also Published As

Publication number Publication date
FR2847483A1 (fr) 2004-05-28
ATE381960T1 (de) 2008-01-15
DE60318292T2 (de) 2008-12-11
FR2847483B1 (fr) 2004-12-24
US6994369B2 (en) 2006-02-07
DE60318292D1 (de) 2008-02-07
US20040100068A1 (en) 2004-05-27
EP1421978A1 (de) 2004-05-26

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